Vulcanizer



May 4 1926.

L. S. CASTONGUAY VULCANIZER Filed Oct. 30, 1925 2 Sheets-Sheet 1 [var 6'. Caatonyzzay May 4 1926. 1,582,900 s CASTONGUAY VULC ANIZER Filed Oct. 30, 1925 2 Sheets-Sheet 2 Layer .5! Cbstonguay lHVen for Patented May 4, 1926.

UNITED" STATES PATENT OFFICE.

LEGEB S. CASTONGUAY, OI AKRON, OHIO, ASSIGNOB TO THE WILLIAMS FOUNDRY AND MACHINE COMPANY, 01' AKRON, OHIO, A CORPORATION 01 OHIO.

'VULCANIZEB. t

'- Application filed October so, .1925. Serial Jim-85,780.

To all whom it may omwem:

Be it knownthat I, Leona S. QASTONGUAY, a citizen of the United States of America, and a resident of Akron, in the county of Summit and State of Ohio, have invented certain, new and useful Improvements in Vulcanizers, of which the following is a full, clear, and exact description.

My invention relates to watch case vulc'anizers, and the principal object of my in vention is to provide a new and improved vulcanizer of this type. In the drawings accompanying this specification and forming a part thereof I have'showmyfor purposes of illustration, one form which my invention may assume. In these drawings:

Figure 1 is-a front elevation of this illustrative embodiment of my invention,

.Figure 2 is a section on the line 2-2 of Fi ure 1, while igure 3 is a side elevation of this illustrative embodiment-of my invention.

The vulcanizer herein shown comprises a pair of stationary mold sections 11' each pro vided with a pair of legs 12 arranged to be secured by means of bolts 13 to a common supporting pedestal 14. These stationary mold sections 11 are further secured together by means of four lugs 15 which extend outwardly from each of the stationary mold sections 11, two on each side of each section one above the other, and'wh'ich are themselves secured together by means of bolts 16 which also secure to each pair of upper lugs an upper supporting bracket 17 and to each pair of lower lugs a lower supporting'bracket 18. positioned directly beneath the corresponding upper supporting bracket 17 and cooperating with the corresponding upper supporting bracket 17 to supporttwo bearing shafts 19 and 20 each held against r'otation in its supporting brackets 17 and 18 by means of suitable set screws 21.

'Pivotally mounted on each'of the'shafts 19, by means of an upper bearing 22 engaging the shaft 19 above the upper supporting bracket 17, and a lower bearing 23 engagin the shaft19 below the lower supporting racketlS, is a movable mold section 24 arranged to cooperate with the corresponding stationary mold section 11 to form the desired cavity 25, andto support any additional part such as the bull ring 26 ordinarily employed when the mold is used for curing a pneumatic tire, and held at the proper elevation by means of a machine screw 27 adjustably mounted in the upper bearing 22 with its ti en a n the u or end of the shaft 19. P g g1 g m) The outer faces of the movable mold section 24 may be provided with suitable pock ets 28 for the reception of heat insulated material intended to decrease the radiation of heat from the mold, and these pockets may be closedby suitable plates 50, and the entire exterior periphery of the mold may also be covered with similar heat insulated material to decrease such radiation from that surface.

Mounted on each of the shafts 20 by means of a tongue 29 is a link 30 supporting in its forks 31 a bearing shaft 32, and mounted on each of these bearing shafts 32 is a bar 33 extending across the face of the corresponding movable mold member 24,"connected by means of a pin 34 to a spider' 35 provided with an annular bearing surface 36 engaging the corresponding movable member 24 along the entire circumference of the mold member 24, additionally supporting the spider 35 by means of lugs 3'? carriedon the spider 35 and resting on the upper face of the bar 33 engaging the spider 35 by means of cylindrical surfaces 38 on .the bar 33 contacting with cooperating cylindrical surfaces 39 on the spider 35 to permit swivelingmof the spider 35 relative to thebar 33 a at an axis parallel to the shafts 19, and drawn and held in position, with the spider 35 holding the movable mold section 24 tightly against the cooperating stationary mold section -11, by means of a bolt 40 engaging in the slot 41 in the free end of the arm 33 and screw threaded into a nut 42 pivoted on the corresponding shaft 19 between its upper and lower supporting brackets 17 and 18.

Mounted upon each of the bars 33, in a recess 43 adjacent the bar supporting shaft 32, isa hook member 44 pivoted to the bar 33 at 45, and acted upon by means of a compression spring 46 to maintain the hook 47 constantly biased toward 3 lug 48 carried by the correspondin movable mold section e bar33-ia In order to prevent radiation of heat from the inner periphery of themolds I form the spiders 35 solid to thus act .as closures for the central'apertures in the outer faces of the movable molds. And to prevent escape tionary mold sections 11, the corresponding movable mold section 24 is swung into position, the bar 33 is rotated to bring the spider 35 against the outer face of the corresponding movable mold section 24, and the bolt is swung into position within the slot 41 in the free 'end of the bar 33 and rotated to cause the bar 33 to act through the spider 35 to firmly seat the movable mold section 24 against the'stationary mold section 11, the necessa I adjustment between the bar 33 and the spi er 35 occurring by slippage-of the spider 35 on the bar '33 at the cylindrical bearing surfaces 38 and 39, and by translatory movement of the entire bar 33 about the pivots 19 and 20 of the nut 42 and link 30, and the spider 35 serving to seal the central opening in the outer face of the movable mold section 34 and, because of the presence of the plate 49, to close the space Within the corresponding mold regardless of the condition or position of the movable mold member 11. And on opening the mold the bar'33, after suflicient movement to attain consider able momentum, will suddenly bring the hook 47 into engagement with the lu 48 to readilybreak the movable mold section 24 from the corr ending. stationary mold section 11, after w ich the bar 33 will continue to 0 en the movable mold section 24 until the ook 47 slips from the lug 48.

From the above 'descri tion it will be ob viousto'thoseskilled in t e art that the embodiment ofmy invention herein disclosed provides awatch case heater accomplishing v the objects ofv my invention and superior particularly in the method of clamping the movable section in position on the corresponding stationary mold section, the method of breakin'gthe mold, and the segregation of the space within the mold'to prevent radiation of heat from the inner periphery of the mold. It will also be apparent to those skilled in the art that the embodiment of my invention herein disclosed embodies advantages other than those specifically pointed out or suggested herein, and also .that this particular embodiment of my in-' Iclaimz 1. A watch case vulcanizer comprisinga pivotally supported movable mold section; and mechanism for holding said movable section in position against a cooperating mold section comprising, a spider having its outer engaging surface arranged w en against said movable section, and a member I pivotally supportedfor movement about an axis parallel to the pivot supporting said movable section, and'arranged to engage said spider over cooperating surfaces on said spider and said member formed to permit relative movement of said spider and said member about an axis also parallel to said pivot. a p

2. A watch case vulcanizer comprising a pivotally supported movable mold section;

mechanlsm for holding said movable section' in position against a cooperating mold section comprising a pivotally supported bar; and means on said bar and said movable section formed to inter-engage upon outward movement of said bar to cause such movement to break said movable section from crating mold section comprising, a spider having its outer e aging surface arranged to bear against sai movable section along the entire circumference thereof, and a member pivotally supported for movement about an axis parallel to the pivot supporting said movable section, and arranged to engage said spider over cooperating surfaces on sa1d,

spider and said member formed to permit relative movement of said spider and. said member about an axis also pivot.

5. A watch case vulcanizer comprising a pivotally supported movable mold section;

parallel to said mechanism for holding said movable section 'in position against a cooperating mold section comprising, a spider having its outer engaging surface arran ed to bear against said movable section, an a bar pivotally su ported for movement about an axis paral el to the pivot supporting said 'movable section, and arranged to engage said spider over cooperating surfaceson said spider and I said bar formed to"permit-rela tive move ment of said spider and said bar about an axis also parallel to said ivot; and means on said bar and said mova le section formed to interengage upon outward movement of said bar to cause such movement to break said movablesection from said cooperating section,

6. A watch case vulcanizer comprising a pivotally supported movable annular mold section; mechanism for holding said movable section in position against a cooperatmovement to break said movable section from said cooperating section.

7. A watch case vulcanizer comprising a pivotally supported movable mold section; and mechanism for holding said movable section in position against a cooperating mold section comprising, a spider having its outer engaging surface arranged to bear against said' movable section and itself formed to then close the central opening in the outer face of said section, and a member pivotally supported for movement about an axis arallel to the ivot supporting said mova le section, and arranged to engage said spider over cooperating surfaces on said spider and said member formed to 'permit relative movement of said spider and said member about an axis also parallel to said pivot.

8. A watch case vulcanizer comprising a pivotally supported movable annular mold section; and mechanism for holding said movable section in position against a cooperating mold section comprising, a spider having its outer engaging surface arranged to bear against said movable section along the entire circumference thereof and itself formed to then close the central opening in the outer face of said section, and a member pivotally supported for movement about an axispara-llel to the pivot supporting said mova le section, and arranged to engage said spider over cooperatin surfaces on said spider and said member ormed to permit relative movement of said spider and said member about an axis also parallel to said pivot.

9. A watch case vulcanizer comprising a movable annual mold section provided with a cavity for the reception of and separate mechanism for holding said movable section in position against a cooperating mold section comprising, a spider having its outer engaging surface arranged to bear against said movable section about the entire circumference of said movable section, and a member arranged to engage said spider to force said spider into tight engagement with said movable section and said movable section into tight engagement with such cooperating section.-

lO. A watch case vulcanizer compris' a movable annular mold section rovi ed with a cavity for the reception of fluid; and separate mechanism for holding said movable section in position against a cooperating mold section comprising, a

spider having its outer engaging surface arranged to bear against said movable section about the entire circumference of said movable section, and a member pivotally supported for movement about an axis parallel to the pivot supporting said movable section, and arranged to engage said spider, over cooperating surfaces on ,said spider and said member formed to permit relative movement of said spider and said member about an axis also parallel to said pivot, to force said spider into tight engagement with said movable section and said movable section into tight engagement with such cooperating section.

11. A watch case vulcanizer comprising a movable annual mold section rovided with a cavity for the reception ot heating fluid; and separate mechanism for holding said movable section in position against a coo erating mold section comprising, a spi er arranged to close the central opening in the outer face of said movable section and having its outer engaging surface arranged to bear against said movable section about the entire circumference of said movable section, and a member arranged to en age saidspider to force said spider into tig t engagement with said movable section and said movable section into tight engagement with such cooperating section.

In testimony whereof I hereunto aifix my signature.

LEGER S. CASTONGUAY.

heating 

